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SAMPLE INFO : 84Au-112a
Sample ID:84Au-112a
Station ID:84Au-112
Latitude:59.338513
Longitude:-153.421834
Datum:NAD83
Date Sampled:1984-01-01
Sample Type 1:Lava
Sample Type 2:Flow
Field Lithology:Basalt
Text Description:
Basaltic hyaloclastite lava flow. Augite, olivine, and hornblende phenocrysts in a slightly vesicular groundmass of plagioclase microlites, olivine, augite, and dark brown devitrified glass. Olivine phenocrysts occur as both large euhedral and small skeletal crystals. Augite commonly occurs in rounded clots of augite +/- olivine. Plagioclase is absent as a phenocryst but several rounded, sieve textures crystals are present as xenocrysts. Map unit Pvb (Waitt and Beget, 2009)

References:
Petrology, geochemistry, and the evolution of magmas from Augustine Volcano, Alaska
The role of water in generating the calc-alkaline trend: new volatile data for Aleutian magmas and a new tholeiitic index

GEOCHEM DATA